Thank you Perian folks for giving me the "Skip this version" option in the check for updates. I'll stick with 1.2.2 for now.

NerdMachine

And what problem exactly are you thinking this thread is about, because your reproduction steps spell it out that you're talking about a different problem than what the original poster is talking about. I think you just found a random thread about avi playback issues and just started posting in it.

This thread is about NO playback, not playback and then stopping. Your testing shows that you have SOME playback, and then it doesn't work. I realize some of this seems complicated, but these are 2 different issues and you should have started another thread, and included a sample.

I had a similar problem - QT failing to play any AVI file, with an error about missing codecs, after upgrading to Perian 1.2.3. Reverting to 1.2.2 fixed it. I'm not going to try to analyse in detail whether everyone in this thread is having exactly the same problem; for all I know there might also be an issue in the Lion version of QT itself as some are claiming. But the fact that the problem started when I upgraded Perian (not when I installed Lion), and went away when I switched back to 1.2.2, is pretty clear proof that at least some of the recent AVI problems are a bug in Perian 1.2.3. I'm sticking with 1.2.2 until I hear that this has been fixed.